Antoine-Laurent Lavoisier was a chemist, a geologist, a physiologist and an economist. He had a law degree, though he never practiced law. Today, people call him the father of modern chemistry. If you've taken even the most basic chemistry class, you're familiar with one of his fundamental contributions to the field: the law of conservation of mass. His work also led to the modern periodic table of the elements.

Oh, and as a teen, he once decided - for the sake of scientific inquiry - to subsist on nothing but milk.

Our listener mail today is from Kathleen and is about our Elsa Lanchester episodes (part 1 and part 2).